Microwave oven



FIG. 1 is a perspective view of the top, front and right side of a microwave oven showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a perspective view of a second embodiment thereof; and,

FIG. 9 is a front elevational view thereof.

The right side elevational view, the left side elevational view, the top plan view, the bottom plan view and the rear elevational view of the embodiment of FIGS. 8 and 9 are identical to FIGS. 3-7 inclusive. 

The ornamental design for a microwave oven, as shown and described. 